Jaipur is the capital and the largest city of the north-western Indian state of Rajasthan. As of 2011, the city had a population of 3.1 million, makin…Jaipur is the capital and the largest city of the north-western Indian state of Rajasthan. As of 2011, the city had a population of 3.1 million, making it the tenth most populous city in the country. Located 268 km from the national capital New Delhi, Jaipur is also known as the Pink City due to the dominant color scheme of its buildings in the old city.